“Generate design themes for [product, e.g., T-shirts or mugs] based on [trend or keyword].”
“Suggest color palettes for a modern and minimalist T-shirt collection for [target audience].”

“Provide slogans or quotes that would work well on [product, e.g., mugs or phone cases] for [niche].”(Example: Provide quotes for yoga enthusiasts.)

“What are some creative typography ideas for a POD business targeting [audience]?”